The STM32 microcontroller based pulse intensity registration system for the neutron monitor

We present the outlines of a new microcontroller based data acquisition system which is aimed for reliable operation in a typical cosmic ray particle registration experiment. The system supports connection of up to 16 input signals and ensures the following operation functionality: (1)stable monitoring of the intensity of a digital pulse signal, or digitization of a continuous potential level with a low time resolution (typically, in the limits of 1-100s); (2)registration of a continuous high-resolution (up to 5-10us) time series of the intensity of input signal; (3)synchronization of registered time series with both external (physical) or local (program-based) trigger signal; (4)possibility of an on-the-fly change of the whole configuration of informational system (both the combination and type of input signals, time resolution and sum duration of the time series measurements, trigger logic, etc) immediately in operation time through convenient communication with a plain text message in dialog mode. In particular, the considered system is applied now for a long-term, high precision measurement of the counting rate of neutron signals at the NM64 type neutron supermonitor of the Tien~Shan mountain cosmic ray station, with a real-time representation of the whole collected dataset in a WWW database.Comment: communication at ISVHECRI 2016 and at the "10 Years Neutron Monitor Database" NMDB Worksho

Deductive method of mathematical model formation for research of measure of acceptable technogenic risk

Extenzivní a intenzivní rozvoj techniky, urbanizace, bydlení obyvatel blízko potenciálně nebezpečných technologických komplexů (TK), znečištění životního prostředí atd. vytváří problém predikace a kontroly možných technogenních rizik. Přijatelné technogenní riziko je stochastický kvantitativní ukazatel bezpečnosti v systému člověk-stroj-prostředí. je nástrojem pro výběr optimální úrovně bezpečnosti technologického komplexu z možných alternativ. Autor analyzuje specifické vlastnosti TK (stochastické chování, hierarchii a podřízenost různých úrovní, vzájemné vztahy mezi životním prostředím a variabilitou), zabývá se výhodami a nevýhodami induktivních a deduktivních metod pro tvorbu matematického modelu a považuje deduktivní metodu za nejlepší metodický přístup k hodnocení přijatelného technogenního rizika TK.Extensive and intensive development of technique, urbanisation, the living of settled inhabitants near potentially dangerous technological complexes, environmental pollution, etc. raise the problem of prediction and control of possible technogenic risks. The acceptable technogenic risk (ATR) is stochastic quantitative index of safety for the man-engine/machine-environment system. It is a tool for selecting a technological complex (TC) safety optimal degree from possible alternatives. The author analyses specific qualities of TC [stochastic behaviour, hierarchy and subordination of different degrees, mutual relations between the environment and changeability], discusses advantages and disadvantages of inductive and deductive methods for mathematical model formation and considers the deductive one as the best methodological approach ti the assessment of ATR of TC

The STM32 microcontroller based pulse intensity registration system for the neutron monitor

We present the outlines of a new microcontroller based data acquisition system which is aimed for reliable operation in a typical cosmic ray particle registration experiment. The system supports connection of up to 16 input signals and ensures the following operation functionality: (1) stable monitoring of the intensity of a digital pulse signal, or digitization of a continuous potential level with a low time resolution (typically, about 1 s–100 s); (2) registration of uninterruptable high-resolution (up to 5–10 μs) time series of the input signal intensity; (3) synchronization of registered time series with both external (physical) or local (program-based) trigger signal; (4) possibility of an on-the-fly change of the whole configuration of informational system (both the combination and type of input signals, time resolution and sum duration of the time series measurements, trigger logic, etc.) immediately in operation time through convenient communication by plain text messages in dialog mode. In particular, the considered system is applied now for a long-term, high precision measurement of the counting rate of neutron signals at the NM64 type neutron supermonitor of the Tien Shan mountain cosmic ray station, with a real-time representation of the whole collected dataset in a WWW database